Remember those old I’m a Mac, I’m a PC ads ? In one, the Mac looks on, concerned, while the PC keeps sneezing from a virus it's caught, eventually crashing backward onto the ground. For a while, Macs did seem mostly immune to computer viruses. But when Apple’s market share ballooned, with it came a new fan club: hackers. Yes, MacOS comes with XProtect, Gatekeeper and other tools, and most Mac owners get by just fine with these plus a dash of skepticism. Still, securi
